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Finding the Fourth Proportional to 468,067.36, 645,931 and 253,206.89

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Solution

The fourth proportional to 468,067.36, 645,931 and 253,206.89 is: 349,424.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,067.36 : 645,931 = 253,206.89 : x
  2. Step 2: Convert to fraction form
    468,067.36/645,931 = 253,206.89/x
  3. Step 3: Cross multiply
    468,067.36x = 645,931 × 253,206.89
  4. Step 4: Simplify right side
    468,067.36x = 163,554,179,664.59
  5. Step 5: Solve for x
    x = 163,554,179,664.59/468,067.36
  6. Step 6: Final answer
    x = 349,424.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.